Fig. 3. Amino acid alignment of XKLC4 with known KLCs. The amino acid alignment of Xenopus KLC4 (line 2), human KLC1, human KLC2, mouse KLC2 and mouse `probable KLC3' (GenBank #Q9DBS5). To avoid confusion with a different mouse KLC3 (see Rahman et al., 1998), mouse `probable KLC3' has been designated Mo_KLC4 in this alignment. Black boxes show identical amino acids and gray boxes show similar amino acids. The conserved heptad repeat region is underlined in gray, and the TPR repeat region is underlined in black. The domain of XKLC4 that interacts with GBP is indicated by the thick black line above the sequence.